The program only applies if you purchased your iPhone 5 between September 2012 and January 2013 and you are experiencing battery issues. If that sounds like you, Apple may issue you a free battery replacement.

Apple has determined that a very small percentage of iPhone 5 devices may suddenly experience shorter battery life or need to be charged more frequently. The affected iPhone 5 devices were sold between September 2012 and January 2013 and fall within a limited serial number range.

To check if your device is eligible for a battery replacement, go to Apple’s website and enter in your iPhone 5’s serial number. Before Apple replaces your iPhone’s battery, the company will have to examine the phone to verify that it is eligible for the free replacement.

The iPhone 5 battery replacement program is currently available only in the U.S. and China, however, Apple says it will be expanding the program to other countries on August 29, 2014.